diff --git a/star-raid/js/enemies.js b/star-raid/js/enemies.js
index 2361abf..761998e 100644
--- a/star-raid/js/enemies.js
+++ b/star-raid/js/enemies.js
@@ -414,7 +414,7 @@ function bossMain(b,def,fm){
           else{if(ph>=1){ks.hotList=[cur,ks.i<ks.seq.length?ks.seq[ks.i++]:cur];ks.hot=-1;}else{ks.hot=cur;}ks.hotT=9;ks.hotT0=9;ks.t=Math.round((ph?3:5)/fm);}   // 乱序：P2一次点2键（和音）；前摇与齐射一致(9帧)
         }
       }
-      b.mainT=4;break;}
+      b.mainT=1;break;}   // mainT=1：钢琴状态机每帧推进（原mainT=4导致所有计时被放大4倍，扫射/乱序/齐射极慢）
     case "blackstone": { // 黑石要塞：五重旋转花瓣弹幕（往复旋摆）；签名亚空间主炮见updateBoss帧级序列
       const base=Math.sin(b.t*0.008)*1.1;
       for(let k=0;k<5;k++)ebul(b.x,b.y,k*TAU/5+base,1.55,"orbG",13);